Use dependency-groups for development dependencies (#83)

Ref:
https://packaging.python.org/en/latest/specifications/dependency-groups/

Author: lagru

.github/workflows/ci.yml

@@ -61,7 +61,7 @@ jobs:
 
       - name: Install package
         run: |
-          python -m pip install .[test]
+          python -m pip install --group "test" .
           python -m docstub --version
           docstub --help
 

pyproject.toml

@@ -40,7 +40,14 @@ dependencies = [
     "isort >=5.13.2",
 ]
 
-[project.optional-dependencies]
+[project.urls]
+Homepage = "https://github.com/lagru/docstub"
+
+[project.scripts]
+docstub = "docstub.__main__:cli"
+
+
+[dependency-groups]
 dev = [
     "pre-commit >=4.3.0",
     "ipython",
@@ -52,12 +59,6 @@ test = [
     "basedpyright >=1.31",
 ]
 
-[project.urls]
-Homepage = "https://github.com/lagru/docstub"
-
-[project.scripts]
-docstub = "docstub.__main__:cli"
-
 
 [tool.setuptools_scm]
 write_to = "src/docstub/_version.py"